I was based in MA for most of 2021 (Jan-Aug). My payroll was issued under MA from Jan-Nov.15 (semi-month pay).
I visited and stayed with a friend in California in Sept and Oct while remote working. I changed my address through USPS permanently for mail forwarding back then.
On Nov I moved to WA and my salary was paid as I live in WA starting Nov 15.
Should I file to California for the two months I stayed there? I read through their tax doc and I could either be categorized as a visitor or part-time resident? If so how should I avoid being double taxed by CA and MA?
Should I file as a full-time or part-time resident in MA?
